We have a bunch of small brown dots on the vinyl liner on the stairs. They only seem to be on the stairs and not anywhere else?
What are they and should I be concerned?
What are they and should I be concerned?
What are these brown spots?
- Thread starter momalley
- Start date
- Jul 21, 2013
- 66,362
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Mix a paste of Vitamin C tablets and put it in a sock over the spots and see if they lift. If so they are iron stains.
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